8.218. Tie::Hash

Provides skeletal methods for
hash-tying classes. Tie::Hash provides a new
method, as well as the methods TIEHASH,
EXISTS, and CLEAR. The
new method is provided as backup in case a class
has no TIEHASH method.

To write your own tied hashes, the methods listed here are required.
See the perltie manpage for more detailed
information and for examples.

TIEHASH

TIEHASH ClassName, list

Constructor. Associates a new hash instance with class
ClassName. listis a list of additional arguments needed to complete the association.